Chestee



(No Model.)

R. 1-1. HERNAN 8v R. 11. FRGUDE.

2 Sheets-#Sheet 1.

ROTARY ENGINBOR PUMP. v

Patented Feb. 10, 1811511 //j @wiwi N. PETERS. Phmmhogupner, wnshmglm. c.

l Z 1 1 Euren/0215 Jjeemu (.N-o Model.) 2 sheets-sheet 2. R. H. HHHNAN 8v R. H. PROUDH.

ROTARY ENGINE 0R PUMP.

Patented Peb. 10

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Unire STATES RICHARD HAlWIMERSLY HEENAN AND RICHARD HURRELL FROUDE, OF MAN- CHESTER, COUNTY OF LANCASTER, ENGLAND.

ROTARY ENGINEs-OR PUMP.

SPECIFICATION forming part of Letters Patent No. 312,116, dated February 10, 1885.

Application filed November 18, 1884. (No model.) Patented in England October 2, 1884, No. 13,102.

To all whom, it may concern.'

Be it known that we, RICHARD HAMMERSLY HEENAN and RICHARD HURRELL FROUDE, citizens of England, both residing at Manchester, in the county of Lancaster, England, have invented an Improvement in Rotary Engines or Pumps, (for which we have made application for a patent in Great Britain, dated October 2, 1884:, No. 13,102,) of which thefollowing is a specication. I

Our invention relates to the class of spherical rotary engines and pumps for which British Letters Patent were granted to B. Tower, dated October 2, 1879, No. 3,953, and United States Letters Patent were granted to G. Murray, Jr., No. 221,599: United States Letters Patent No. 295,380 were also granted on the 18th of March, 1884, to the said R. H. Froude for certain details of construction of such engines and pumps.

Our present invention has for its obj ect so to construct and arrange several of these details as to obtain increased strength of parts and tightness against leakage, as also to simplify and cheapen their construction, as we will describe, referring to the accompanying drawin s.

ligure 1 is a front View, and Fig. 2 a plan, of the centralpiston or diaphragni,which revolves and is balanced within the spherical shell. Fig. 3 is an elevation of the two transversely crossing central pins which form the joint-pins of the two revolving and oscillating blades. Fig. 4 is a side view, and Fig. 5 a plan,of one of the packings of the piston. Fig. 6 is an elevation, partly in section, of the two blades and part of the piston to which they are jointed. Fig. 7 is a back view, and Fig. 8 a plan, of one of those blades. Fig. 9 is a side view, and Fig. 10 aplan, of one the packings of the blades. Fig. 1.1 is an elevation, and Eig. 12 a plan, of one of the end packings at the joints of the blades to the piston. Fig. 13 is an elevation, and Figlei. a plan, of one of the bushes for the joint-pins.

The piston A has bored through its middle two holes at right angles to one another to receive the two joint-pins. One of these, B,

made in one piece, is passed into one of the holes ofthe piston, the other is made in two 5o parts, B', terminating in a part of smaller diameter screw-threaded, and B2 made with a threaded hole at its end to receive thescrewed end of B, so that after putting B in position in the one hole of A, the parts B and B2 are 55 introduced from opposite sides and secured together by screwing.

To prevent B from unscrewing, a pin, l), is inserted after B is screwed home. BAZ is prevented from turning round by the miter fitting of its end to the recessed bed formed for it in B. The bosses of the blades D are bored sutciently large to admit bushes C,which tit the outer ends of the pins B,and arescrewed into the bosses of the blades, being prevented from unscrewing by pins c, passed through them and the bosses of the blades D. Each bladeD and D is made in one piece with its shaft E E.

The packings are of the followi-ngkind: the

piston A is packed at four places, in each case 7o by two pieces, a c, let into grooves formed in the periphery of the piston, and separated by a wedge-piece, a', that is pressed outward by a helical spring, c". It will thus be seen that the pieces c d and spring-actuated wedge-piece 7 5 c constitute aseparate or distinct unitary packing,and that it isessential in practical working of the piston that one ofthe unitary packings be inserted separately as a complete iixture within each ot' the series of grooves or recesses 8o in the piston-head. The blades D D are also packed at two places of each, in each case by two pieces, dd, separated by a wedge-piece, d, that, like a', is pressed outward by a spring.

Into a recess in each of the blade-bosses is 8 5 inserted a horseshoe-piece, G,whichis pressed outward by a pair of springs, gg, and also by the outward tendency of the packing-pieces d, which are shouldered down at d3 to admit G.

Having thus described the nature of our in- 9o vcntion and the best means we know of carrying it into practical effect, we claiml. In a spherical rotary engine orpump, the combination of the transversely-bored piston,

A, the joint-pins B, B', and B2, the bossed 95 blades D D, and their bushes C, as means of jointing the blades to the piston, substantially as described.

2. In combination with a spherical rotary In testimony whereof We have signed our engine or pump, a piston-head havingaseries names to this speoificatiomin the presence of of separate recesses located at intervals in its two subscribing Witnesses, this 5th day of N oi5 periphery, with a unitary packing composed vember, A. D. 1884.

5 01:' the pieces aa, and spring-actuated Wedge- RICHARD HAMMERSLY HEENANT piece a, seated within each of the recesses, RICHARD UHREN FROUDE substantially as described.

3. In a spherical rotary engine or pump, in combination with the blades D D', the pack- Io i1ig-pieces cl, their wedge-pieces al', and springs d2, the horseshoe-pieces G, and their springs g, substantially as described.

Witnesses:

HAROLD IMRAY, 28 Southampton Buildings, London, lV.

FREDERICK TAYLOR, Greenleaf Lane, Walthamstow. 

